From 30e6912c7b9387642acf1ab91dca18461e35ebb2 Mon Sep 17 00:00:00 2001
From: Leonard Lyubich <leonard@nspcc.ru>
Date: Sat, 3 Oct 2020 08:19:22 +0300
Subject: [PATCH] [#69] object/acl: Construct service from options

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
---
 cmd/neofs-node/object.go         | 42 ++++++++++++++++++--------------
 pkg/services/object/acl/basic.go | 33 +++++++++++++++++--------
 pkg/services/object/acl/opts.go  | 27 ++++++++++++++++++++
 3 files changed, 74 insertions(+), 28 deletions(-)
 create mode 100644 pkg/services/object/acl/opts.go

diff --git a/cmd/neofs-node/object.go b/cmd/neofs-node/object.go
index 9aaa5f12..f0c5d5fd 100644
--- a/cmd/neofs-node/object.go
+++ b/cmd/neofs-node/object.go
@@ -292,25 +292,31 @@ func initObjectService(c *cfg) {
 	objectGRPC.RegisterObjectServiceServer(c.cfgGRPC.server,
 		objectTransportGRPC.New(
 			acl.New(
-				acl.NewSenderClassifier(
-					c.cfgNetmap.wrapper,
-					c.cfgNetmap.wrapper,
+				acl.WithSenderClassifier(
+					acl.NewSenderClassifier(
+						c.cfgNetmap.wrapper,
+						c.cfgNetmap.wrapper,
+					),
 				),
-				c.cfgObject.cnrStorage,
-				objectService.NewSignService(
-					c.key,
-					objectService.NewTransportSplitter(
-						c.cfgGRPC.maxChunkSize,
-						c.cfgGRPC.maxAddrAmount,
-						&objectSvc{
-							put:     sPutV2,
-							search:  sSearchV2,
-							head:    sHeadV2,
-							rng:     sRangeV2,
-							get:     sGetV2,
-							rngHash: sRangeHashV2,
-							delete:  sDeleteV2,
-						},
+				acl.WithContainerSource(
+					c.cfgObject.cnrStorage,
+				),
+				acl.WithNextService(
+					objectService.NewSignService(
+						c.key,
+						objectService.NewTransportSplitter(
+							c.cfgGRPC.maxChunkSize,
+							c.cfgGRPC.maxAddrAmount,
+							&objectSvc{
+								put:     sPutV2,
+								search:  sSearchV2,
+								head:    sHeadV2,
+								rng:     sRangeV2,
+								get:     sGetV2,
+								rngHash: sRangeHashV2,
+								delete:  sDeleteV2,
+							},
+						),
 					),
 				),
 			),
diff --git a/pkg/services/object/acl/basic.go b/pkg/services/object/acl/basic.go
index 6da0a231..f06f0ee6 100644
--- a/pkg/services/object/acl/basic.go
+++ b/pkg/services/object/acl/basic.go
@@ -16,9 +16,7 @@ import (
 type (
 	// Service checks basic ACL rules.
 	Service struct {
-		containers core.Source
-		sender     SenderClassifier
-		next       object.Service
+		*cfg
 	}
 
 	putStreamBasicChecker struct {
@@ -47,6 +45,17 @@ type (
 	}
 )
 
+// Option represents Service constructor option.
+type Option func(*cfg)
+
+type cfg struct {
+	containers core.Source
+
+	sender SenderClassifier
+
+	next object.Service
+}
+
 var (
 	ErrMalformedRequest  = errors.New("malformed request")
 	ErrUnknownRole       = errors.New("can't classify request sender")
@@ -54,16 +63,20 @@ var (
 	ErrBasicAccessDenied = errors.New("access denied by basic acl")
 )
 
+func defaultCfg() *cfg {
+	return new(cfg)
+}
+
 // New is a constructor for object ACL checking service.
-func New(
-	c SenderClassifier,
-	cnr core.Source,
-	next object.Service) Service {
+func New(opts ...Option) Service {
+	cfg := defaultCfg()
+
+	for i := range opts {
+		opts[i](cfg)
+	}
 
 	return Service{
-		containers: cnr,
-		sender:     c,
-		next:       next,
+		cfg: cfg,
 	}
 }
 
diff --git a/pkg/services/object/acl/opts.go b/pkg/services/object/acl/opts.go
new file mode 100644
index 00000000..52fa75b4
--- /dev/null
+++ b/pkg/services/object/acl/opts.go
@@ -0,0 +1,27 @@
+package acl
+
+import (
+	"github.com/nspcc-dev/neofs-api-go/v2/object"
+	"github.com/nspcc-dev/neofs-node/pkg/core/container"
+)
+
+// WithContainerSource returns option to set container source.
+func WithContainerSource(v container.Source) Option {
+	return func(c *cfg) {
+		c.containers = v
+	}
+}
+
+// WithSenderClassifier returns option to set sender classifier.
+func WithSenderClassifier(v SenderClassifier) Option {
+	return func(c *cfg) {
+		c.sender = v
+	}
+}
+
+// WithNextService returns option to set next object service.
+func WithNextService(v object.Service) Option {
+	return func(c *cfg) {
+		c.next = v
+	}
+}